AJAX在JAVA上初步应用

package pg; import java.io.FileOutputStream; import java.io.PrintStream; import java.io.StringWriter; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.Element; import com.sun.org.apache.xml.internal.serialize.OutputFormat; import com.sun.org.apache.xml.internal.serialize.XMLSerializer; public class CreateXml { public Document createXML() throws Exception { DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); Document doc = db.newDocument(); Element el = doc.createElement("cl"); Element c1 = doc.createElement("city"); c1.appendChild(doc.createTextNode("上海")); el.appendChild(c1); Element c2 = doc.createElement("city"); c2.appendChild(doc.createTextNode("西藏")); el.appendChild(c2); doc.appendChild(el); return doc; } /** * @param args */ // 讲XML格式化文件 public static void main(String[] args) { CreateXml cx = new CreateXml(); try { Document doc = cx.createXML(); OutputFormat formate = new OutputFormat(doc, "GBK", true); StringWriter writ = new StringWriter(); XMLSerializer ser = new XMLSerializer(writ, formate); ser.serialize(doc.getDocumentElement()); PrintStream ps = new PrintStream(new FileOutputStream("new.xml")); ps.print(writ.toString()); } catch (Exception e) { e.printStackTrace(); } } }